4-125449492-G-C

Variant names:

• chr4-125449492-G-C
• NM_001291303.3:c.8482G>C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001291303.3(FAT4):​c.8482G>C​(p.Asp2828His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,660 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D2828N) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: FAT4 NM_001291303.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.71

Genes affected

FAT4 (HGNC:23109): (FAT atypical cadherin 4) The protein encoded by this gene is a member of the protocadherin family. This gene may play a role in regulating planar cell polarity (PCP). Studies in mice suggest that loss of PCP signaling may cause cystic kidney disease, and mutations in this gene have been associated with Van Maldergem Syndrome 2. Alternatively spliced transcript variants have been noted for this gene. [provided by RefSeq, Mar 2014]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.903

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAT4	NM_001291303.3	c.8482G>C	p.Asp2828His	missense_variant	Exon 10 of 18	ENST00000394329.9	NP_001278232.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAT4	ENST00000394329.9	c.8482G>C	p.Asp2828His	missense_variant	Exon 10 of 18	5	NM_001291303.3	ENSP00000377862.4
FAT4	ENST00000335110.5	c.3370G>C	p.Asp1124His	missense_variant	Exon 9 of 15	1		ENSP00000335169.5
FAT4	ENST00000674496.2	c.3253G>C	p.Asp1085His	missense_variant	Exon 9 of 17			ENSP00000501473.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461660 Hom.: 0 Cov.: 41 AF XY: 0.00000138 AC XY: 1 AN XY: 727120

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.35
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.12	T;.
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	D;D
M_CAP	Benign	0.011	T
MetaRNN	Pathogenic	0.90	D;D
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	0.83	L;.
PrimateAI	Uncertain	0.60	T
PROVEAN	Benign	-1.9	N;N
REVEL	Uncertain	0.34
Sift	Uncertain	0.019	D;D
Sift4G	Pathogenic	0.0010	D;D
Polyphen		1.0	D;D
Vest4		0.82
MutPred		0.48		Loss of loop (P = 0.1242);.;
MVP		0.29
MPC		0.70
ClinPred		0.83	D
GERP RS		5.6
Varity_R		0.12
gMVP		0.61

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-126370647;